Docking block moving device and using method thereof

Abstract

The invention provides a docking block moving device and a using method thereof.The docking block moving device comprises a lifting mechanism, a telescopic mechanism, a walking mechanism and a control mechanism, the telescopic mechanism comprises a telescopic driving assembly and two parallel telescopic rods, and the lifting mechanism comprises a lifting driving assembly and a plurality of lifting rods arranged on the telescopic rods; the jacking driving assembly is in driving connection with the jacking rod so as to drive the end, away from the telescopic rod, of the jacking rod to stretch out and draw back to jack up or lower the docking block; the walking mechanism is provided with a plurality of first walking wheels arranged at the bottom of the telescopic rod and used for driving the telescopic rod to move. The control mechanism is in control connection with the telescopic driving assembly and the jacking driving assembly, the telescopic movement of the telescopic rod and the jacking rod is regulated and controlled by controlling the actions of the two driving assemblies, and an operator can complete the whole-process operation of lifting, moving and lowering of the docking block by inputting a control instruction. The docking block moving device can adapt to different docking blocks, is flexible to move and safe in power supply, and improves the operation efficiency and safety.

Description

Technical Field

[0001] This invention belongs to the field of shipbuilding technology, specifically relating to a dock pier moving device and its usage method. Background Technology

[0002] During shipbuilding, dock piers, as core supporting components bearing major sections and the entire hull, require adjustments to their placement as construction progresses and technological processes are refined. Traditional dock pier movement relies primarily on manual labor or forklifts, both of which have significant drawbacks: manual labor is inefficient, physically demanding, and prone to accidents such as collisions and injuries due to the weight of the dock piers. Forklift transport, limited by the confined working space within the dock piers and the densely packed environment, cannot flexibly access designated locations and is inconvenient to operate.

[0003] In addition, traditional relocation operations often use wired power supply for equipment such as cranes. The internal pipelines of the dock are intertwined and the working conditions are complex, making the laying and storage of power cables difficult. This makes the cables prone to wear, crushing, and other faults, which can lead to safety hazards such as leakage and short circuits. Moreover, the cable length is limited and cannot cover the entire dock, restricting the range of dock movement.

[0004] Therefore, developing an efficient, safe, and flexible dock pier moving device has become an urgent problem to be solved in the shipbuilding industry. Summary of the Invention

[0005] To achieve the above objectives, the present invention provides the following technical solution: A dock moving device includes: a telescopic mechanism comprising a telescopic drive assembly and two parallel telescopic rods, the telescopic drive assembly being driven to the telescopic rods for driving the telescopic rods to extend or retract along their length; a lifting mechanism comprising a lifting drive assembly and multiple lifting rods, the lifting rods being disposed on the telescopic rods, with one end of the lifting rods away from the telescopic rods used to place the dock; the lifting drive assembly being driven to the lifting rods for driving the end of the lifting rods away from the telescopic rods to extend or retract, thereby lifting or lowering the dock; a walking mechanism comprising multiple first walking wheels, the first walking wheels being disposed at the bottom of the telescopic rods for driving the telescopic rods to move; and a control mechanism being controllably connected to the telescopic drive assembly and the lifting drive assembly, the control mechanism controlling the actions of the telescopic drive assembly and the lifting drive assembly to regulate the extension and retraction of the telescopic rods and the lifting rods.

[0006] In some embodiments, the lifting mechanism further includes a plurality of pads, with at least one pad provided on the end of the lifting rod away from the telescopic rod.

[0007] In some embodiments, the pad has a raised structure and a recessed structure on two opposite surfaces in the thickness direction, respectively; the raised structure and the recessed structure are adapted to each other to allow multiple pads to be detachably stacked and engaged.

[0008] In some embodiments, the dock moving device further includes: a plurality of support rods adapted to pass through process holes reserved on the dock, and the two ends of the support rods are connected to the ends of the lifting rods away from the telescopic rods.

[0009] In some embodiments, both the telescopic drive assembly and the lifting drive assembly are hydraulic cylinders.

[0010] In some embodiments, the control mechanism further includes: a housing and a plurality of drive motors, the drive motors being disposed on the housing; the telescopic drive assembly and the lifting drive assembly being disposed inside the housing, the drive motors being connected to the hydraulic pump of the hydraulic cylinder.

[0011] In some embodiments, the control mechanism further includes a lithium battery and an inverter, which are disposed inside the housing. The lithium battery provides power to the drive motor, and the inverter converts the DC power output from the lithium battery into AC power adapted to the drive motor.

[0012] In some embodiments, the control mechanism further includes a controller and a control panel, the control panel being used for operators to input control commands; the controller is connected to both the control panel and the drive motor, and the controller controls the movement of the drive motor according to the control commands, thereby adjusting the extension and retraction of the telescopic rod and the lifting rod.

[0013] In some embodiments, the walking mechanism further includes a second walking wheel and a motor, the second walking wheel being disposed at the bottom of the housing, and the motor being drivenly connected to the second walking wheel to drive the second walking wheel to rotate.

[0014] The present invention also provides a method for using the above-mentioned dock moving device, comprising the following steps: moving the dock moving device to the dock to be moved, and distributing the two telescopic rods on both sides of the dock; the telescopic drive assembly drives the ends of the two telescopic rods to extend until the extension length of the telescopic rods is greater than the length of the dock, so that the lifting rod on the telescopic rod can correspond to the support point on the dock; subsequently, the lifting drive assembly drives the end of the lifting rod to extend until the dock is lifted off the ground; the walking mechanism drives the telescopic rod, the lifting rod, and the lifted dock to move to the target position; after reaching the target position, the lifting drive assembly drives the lifting rod to retract, lowering the dock and placing it at the target position; the telescopic drive assembly drives the telescopic rod to retract.

[0015] Compared with the prior art, the dock moving device and its usage method provided by the present invention have the following beneficial effects: 1. In the dock moving device provided by the present invention, the telescopic mechanism adopts a design scheme of parallel arrangement of double telescopic rods, and with the synchronous drive of telescopic hydraulic cylinders, it can flexibly adapt to docks of different lengths and specifications; the retractable design of the telescopic rods and lifting rods allows them to easily enter narrow and low spaces that large equipment such as the bottom of the ship cannot enter, and can also adapt to docks of different sizes and weights, without the need to customize special equipment for specific docks, which greatly reduces the equipment investment cost. 2. In the dock pier moving device provided by this invention, the lifting mechanism is equipped with multiple sets of lifting rods to support the dock pier, and is equipped with wear-resistant and pressure-resistant pads, which increases the contact area with the dock pier, reduces local pressure, and prevents the dock pier from breaking and cracking due to stress concentration. At the same time, the anti-slip buffer properties of the pads prevent the dock pier from slipping during the lifting process. In addition, the pads can be stacked according to actual needs to flexibly adjust the lifting height, further improving the adaptability and stability of the support. 3. In the dock moving device provided by the present invention, the second traveling wheel at the bottom of the shell is driven by a motor, providing the main moving power and reducing manpower input; the first traveling wheel at the bottom of the telescopic rod moves synchronously with the telescopic rod as it extends and retracts, providing support for the suspended section of the telescopic rod, which not only ensures the stability of the telescopic rod's entire stroke movement, but also avoids movement jamming caused by structural sagging. 4. In the dock pier moving device provided by this invention, the control mechanism integrates a controller and a control panel, realizing centralized and precise control of telescopic, lifting, and walking movements. Operators can complete the entire process of lifting, moving, and lowering the dock pier by inputting commands, reducing the intensity of manual operation and the technical threshold. Moreover, the dock pier moving device provided by this invention adopts wireless power supply, eliminating on-site safety hazards such as tripping, crushing, and leakage that may be caused by cables. Attached Figure Description

[0016] Figure 1 This is a schematic diagram of the structure of the dock moving device provided by the present invention; Figure 2 This is a front view of the dock moving device provided by the present invention; Figure 3 This is a side view of the dock moving device provided by the present invention.

[0017] Explanation of icon numbers: 10—Telescopic mechanism; 101—Telescopic rod; 20—Lifting mechanism; 201—Lifting mast; 30—Traveling mechanism; 301—First traveling wheel; 302—Second traveling wheel; 40—Control mechanism; 401—Housing; 402—Drive motor; 403—Controller; 404—Control panel. Detailed Implementation

[0018] To more clearly illustrate the technical solutions in the embodiments of the present invention or the prior art, the specific implementation methods of the present invention will be described below with reference to the accompanying drawings. Obviously, the drawings described below are merely some embodiments of the present invention. For those skilled in the art, other drawings and other implementation methods can be obtained based on these drawings without any creative effort.

[0019] To keep the drawings concise, each figure only schematically shows the parts relevant to the invention, and these do not represent the actual structure of the product. Furthermore, to facilitate understanding, in some figures, only one of components with the same structure or function is schematically depicted, or only one is labeled. In this document, "one" not only means "only one," but can also mean "more than one."

[0020] It should also be further understood that the term "and / or" as used in this specification and the appended claims refers to any combination of one or more of the associated listed items and all possible combinations, and includes such combinations.

[0021] In this document, it should be noted that, unless otherwise explicitly specified and limited, the terms "installation," "connection," and "linking" should be interpreted broadly. For example, they can refer to fixed connections, detachable connections, or integral connections; they can refer to mechanical connections or electrical connections; they can refer to direct connections or indirect connections through an intermediate medium; and they can refer to the internal communication between two components. Those skilled in the art can understand the specific meaning of the above terms in this invention based on the specific circumstances.

[0022] Furthermore, in the description of this invention, the terms "first," "second," etc., are used only for distinguishing descriptions and should not be construed as indicating or implying relative importance.

[0023] like Figures 1 to 3 As shown, the present invention provides a dock moving device, including: a lifting mechanism 20, a telescopic mechanism 10, a walking mechanism 30 and a control mechanism 40, wherein the telescopic mechanism 10 includes a telescopic drive assembly and two parallel telescopic rods 101, each telescopic rod 101 being drivenly connected to the telescopic drive assembly, the telescopic drive assembly being used to drive the telescopic rod 101 to telescopically move along its length direction.

[0024] The aforementioned lifting mechanism 20 includes a lifting drive assembly and multiple lifting rods 201. The lifting rods 201 are mounted on the telescopic rod 101. One end of the lifting rod 201 away from the telescopic rod 101 is used to place the dock pier. The lifting drive assembly is driven to the lifting rod 201 and is used to drive the end of the lifting rod 201 away from the telescopic rod 101 to move telescopically to lift or lower the dock pier.

[0025] The aforementioned walking mechanism 30 includes a plurality of first walking wheels 301, which are disposed at the bottom of the telescopic rod 101 and are used to drive the telescopic rod 101 to move.

[0026] The aforementioned control mechanism 40 is connected to the telescopic drive assembly and the lifting drive assembly respectively. By controlling the actions of the telescopic drive assembly and the lifting drive assembly, the telescopic movement of the telescopic rod 101 and the lifting rod 201 is adjusted.

[0027] In some embodiments, the lifting mechanism 20 further includes a plurality of pads, with at least one pad provided on the end of the lifting rod 201 away from the telescopic rod 101.

[0028] The pad increases the contact area between the lifting boom 201 and the dock, reducing the local pressure exerted by the lifting boom 201 on the dock and preventing damage such as breakage and cracking of the dock due to concentrated stress. Secondly, the pad itself has wear-resistant and pressure-resistant properties, which can reduce frictional loss between the end of the lifting boom 201 and the dock, extending the service life of the lifting mechanism 20 and the dock. Furthermore, the pad can also play an anti-slip and buffering role, effectively preventing the dock from slipping relative to the lifting boom 201 during the lifting and moving of the dock, thus improving the stability and safety of the dock during movement.

[0029] Furthermore, on two opposing surfaces of the pad block along its thickness direction, there are protruding and recessed structures, which can be fitted and locked together. When the distance between the end of the lifting rod 201 and the dock pier is insufficient, the recessed structure of the second pad block can be aligned with the protruding structure of the first pad block and placed vertically downwards to lock them together. In this way, multiple pad blocks can be stacked according to the actual height requirements to flexibly adjust the lifting height.

[0030] In some embodiments, the above-mentioned dock moving device also includes multiple support rods. The support rods can pass through the process holes reserved on the dock and the two ends of the support rods are connected to the ends of the lifting rod 201. Like carrying a shoulder pole, the dock is lifted from below. This connection method is very stable and can effectively prevent the dock from tilting or slipping during lifting and moving.

[0031] In some embodiments, both the telescopic drive assembly and the lifting drive assembly are hydraulic cylinders. The hydraulic cylinder driving the telescopic boom 101 is called the telescopic hydraulic cylinder, which controls the opening and closing of the two telescopic booms 101 to accommodate dock piers of different lengths. The hydraulic cylinder driving the lifting boom 201 is called the lifting hydraulic cylinder. High-pressure oil enters the lifting hydraulic cylinder, pushing one end of the lifting boom 201, thereby lifting the dock pier.

[0032] In some embodiments, the control mechanism 40 includes a housing 401 and a plurality of drive motors 402. The telescopic drive assembly and the lifting drive assembly are both disposed inside the housing 401, and the drive motors 402 are disposed on the housing 401. The hydraulic pumps of the telescopic hydraulic cylinder and the lifting hydraulic cylinder are respectively driven and connected to one drive motor 402. The drive motor 402 can drive the hydraulic pump to operate, thereby driving the hydraulic cylinder to perform corresponding actions.

[0033] In some embodiments, one end of the telescopic rod 101 is connected to the housing 401, and the other end of the telescopic rod 101 can extend and retract along its length. The overall structural design is based on the structure of a forklift. The telescopic rod 101 and the housing 401 are connected by welding. To optimize the structural strength and dimensional accuracy of the connection, after the welding process, the telescopic rod 101 and the housing 401 are subjected to a dual process of tempering and vibration aging to eliminate welding residual stress. The tempering process reduces lattice distortion and internal stress concentration in the welded area and improves the toughness of the material by using high-temperature heat preservation and slow cooling. The vibration aging process gradually releases and redistributes residual stress by applying periodic vibration, effectively suppressing structural deformation during subsequent use.

[0034] It should be noted that the welding operation must meet the requirements of the full welding process. The weld should completely cover the area to be welded, without defects such as missed welds or incomplete welds. The ends of the weld should be treated with corner wrapping to ensure that the corners are rounded and fully formed, without sharp corners, slag inclusions, or porosity, so as to ensure the structural strength and uniform stress distribution of the welded joint.

[0035] Figures 1 to 3 The illustration shows a specific embodiment in which two lifting rods 201 are provided on the telescopic rod 101. A lifting rod 201 is provided on the telescopic rod 101 at the end away from the housing 401, and a lifting rod 201 is provided in the middle of the telescopic rod 101.

[0036] A first traveling wheel 301 is provided at the bottom of the telescopic end away from the housing 401. When the telescopic rod 101 extends or retracts, the first traveling wheel 301 rolls and slides on the ground. In this embodiment, when the telescopic rod 101 extends, its far end, that is, the end away from the housing 401, is suspended in the air. The first traveling wheel 301 is in direct contact with the ground, providing an additional, movable support point for the extended suspended section. This prevents the slender telescopic rod 101 from excessively sagging or bending due to its own weight and load, ensuring the rigidity and stability of the overall structure.

[0037] In addition, to further improve the stability and support effect of the dock moving device during movement, besides the end of the telescopic rod 101 away from the shell 401, multiple first traveling wheels 301 can be added to the bottom of the shell 401 and the end of the telescopic rod 101 near the shell 401. The distributed arrangement of multiple sets of first traveling wheels 301 effectively disperses the overall weight of the device and the dock, reduces the load on individual traveling wheels, and ensures that the telescopic rod 101 maintains a stable support state throughout its entire extension and retraction process. This prevents the device from tilting or becoming stuck due to uneven force, thereby improving the smoothness and safety of the dock moving process.

[0038] Furthermore, the control mechanism 40 also includes a lithium battery and an inverter disposed inside the housing 401. The lithium battery is electrically connected to the drive motor 402 through the inverter. The lithium battery is used to provide working power to the drive motor 402 so that it can operate normally.

[0039] Since the lithium battery outputs DC power, while the drive motor 402 typically uses AC power, an inverter is needed to convert the DC power into AC power that is compatible with the drive motor 402, thereby meeting the power supply requirements of the drive motor 402.

[0040] Preferably, the lithium battery is a lithium iron phosphate battery with an electrical specification of 72V / 100AH ​​and physical dimensions of 58×21×14mm. This lithium battery system integrates multiple functional modules: equipped with a 4G+GPS dual-mode positioning unit, enabling accurate tracking of the device's location and real-time data transmission; configured with a digital power display component, supporting visual monitoring of remaining power, making it easy for operators to understand the battery's remaining power status; matched with intelligent fast charging technology, which can significantly shorten charging time and improve the equipment's operational efficiency; and also has a built-in air switch, which can quickly cut off the circuit in case of overload, short circuit or other abnormal operating conditions, providing reliable safety protection for the battery and the electrical equipment.

[0041] Furthermore, the aforementioned control mechanism 40 also includes a controller 403 and a control panel 404. The controller 403 is connected to the drive motor 402, and the control panel 404 allows operators to input various control commands, such as the extension and retraction of the telescopic rod 101 and the extension and retraction of the lifting rod 201. After receiving and parsing these commands, the controller 403 converts them into drive signals and sends them to the drive motor 402, thereby driving the motor 402 to perform corresponding actions to regulate the movement state of the telescopic rod 101 and the lifting rod 201.

[0042] In some embodiments, the aforementioned walking mechanism 30 further includes a second walking wheel 302 and a motor. The second walking wheel 302 is disposed at the bottom of the housing 401, and the motor is driven by the second walking wheel 302 to drive the second walking wheel 302 to move, thereby assisting in the overall movement of the dock moving device and reducing manpower. The motor is controlled by a controller 403. After receiving relevant control commands input by the operator, the controller 403 adjusts the operating state of the motor according to the commands, driving the second walking wheel 302 to move along a set trajectory. The first walking wheel 301 acts as a driven wheel or auxiliary support wheel, moving the entire device and the dock it supports smoothly and accurately to the designated position.

[0043] Preferably, the motor is a hydraulically driven motor.

[0044] Based on the above-mentioned dock moving device, the present invention also provides a method for using the above-mentioned dock moving device, the steps of which include: Step 1: Equipment Preparation and Start-up Check that all components of the dock moving device are intact, and confirm that the first traveling wheel 301 and the second traveling wheel 302 are not stuck, and that the pads and support rods are complete.

[0045] Turn on the lithium battery switch to start the control mechanism 40. The lithium battery supplies power to the inverter, which converts the DC power to AC power and supplies it to the drive motor 402. The drive motor 402 drives the hydraulic pump to operate, establishing pressure for the entire hydraulic system (telescopic hydraulic cylinder and lifting hydraulic cylinder).

[0046] Step 2: Move the dock moving device to the dock position. The operator inputs a movement command through the control panel 404. After receiving the command, the controller 403 controls the motor to run, driving the second traveling wheel 302 to rotate. Under the drive of the second traveling wheel 302 and the auxiliary support of the first traveling wheel 301, the entire dock moving device moves smoothly to the vicinity of the dock to be moved, so that the two telescopic rods 101 are respectively located on both sides of the dock.

[0047] Step 3: Adjust the telescopic mechanism 10 to adapt to the dock pier. The operator issues a telescopic command via control panel 404. Controller 403 controls the telescopic hydraulic cylinders to extend the ends of the two telescopic booms 101 until their length exceeds the length of the dock pier. This ensures that the lifting rods 201 on the telescopic booms 101 precisely align with the support points of the dock pier, guaranteeing support stability. During the extension of the telescopic booms 101, the first traveling wheel 301 at the bottom of the telescopic booms 101 moves and rolls on the ground, providing auxiliary support.

[0048] Step 4: Install the support rods and pads. The support rod is passed horizontally through the pre-set process hole on the dock pier. According to the height of the dock pier support hole, the required number of pads are stacked on the upper end of the lifting rod 201. The protrusions and recesses of the pads are aligned and locked together to form a stable stack. The two ends of the support rod are respectively placed on the upper end of the lifting rod 201 on both sides where the pads have been placed.

[0049] Step 5, Lifting Dock The operator activates the lifting function via control panel 404. Controller 403 controls the lifting hydraulic cylinders to move synchronously, pushing the end of lifting rod 201 upwards. Lifting rod 201, through pads and support rods, smoothly lifts the dock pier, raising it off the ground to the preset height. After lifting the dock pier, the lifting hydraulic cylinders enter a pressure-holding state, maintaining the lifting height.

[0050] Step 6: Move the dock to the target location. The operator inputs a walking command through the control panel 404, and the controller 403 controls the motor to move, which in turn drives the second walking wheel 302 to move, thus moving the entire dock moving device and the lifted dock to the target position. During the movement, the first walking wheel 301 moves along with the device and provides auxiliary support to ensure smooth movement.

[0051] Step 7: Lower and place the dock piers Once the dock pier moving device has moved to the target position, the operator controls the lifting rod 201 to execute the descent command through the control panel 404. The controller 403 controls the lifting hydraulic cylinder to slowly retract, and the dock pier descends smoothly to the target position along with the support rod and pad.

[0052] After confirming that the dock pier is placed securely, pull the support rod out of the process hole.

[0053] Step 8: Retrieve the equipment and disconnect the power. Control the retraction hydraulic cylinder to retract, so that the telescopic rod 101 returns to its initial position, and remove the pads layer by layer and put them back in place.

[0054] The dock mobile device was then moved to a safe parking position, and the lithium battery switch was turned off.

[0055] The above are merely preferred embodiments of the present invention. It should be noted that those skilled in the art can make various improvements and modifications without departing from the principle of the present invention, and these improvements and modifications should also be considered within the scope of protection of the present invention.

Claims

1. A dock pier moving device, characterized in that, include: A telescopic mechanism includes a telescopic drive assembly and two parallel telescopic rods. The telescopic drive assembly is driven to the telescopic rods and is used to drive the telescopic rods to extend or retract along their length. The lifting mechanism includes a lifting drive assembly and multiple lifting rods. The lifting rods are mounted on the telescopic rods, and one end of the lifting rods away from the telescopic rods is used to place the dock pier. The lifting drive assembly is driven to the lifting rods and is used to drive the end of the lifting rods away from the telescopic rods to extend or retract, so as to lift or lower the dock pier. The walking mechanism includes a plurality of first walking wheels, which are disposed at the bottom of the telescopic rod and are used to drive the telescopic rod to move. A control mechanism is connected to the telescopic drive assembly and the lifting drive assembly. The control mechanism controls the movement of the telescopic drive assembly and the lifting drive assembly, thereby regulating the extension and retraction of the telescopic rod and the lifting rod.

2. The dock moving device according to claim 1, characterized in that, The lifting mechanism also includes multiple pads, and at least one of the pads is provided on the end of the lifting rod away from the telescopic rod.

3. The dock moving device according to claim 2, characterized in that, The pad has a raised structure and a recessed structure on two opposite surfaces in the thickness direction, respectively; The protruding structure and the recessed structure are adapted to each other to allow multiple pads to be detachably stacked and engaged.

4. The dock moving device according to any one of claims 1-3, characterized in that, Also includes: Multiple support rods are provided, the support rods being adapted to pass through pre-reserved process holes on the dock pier, and the two ends of the support rods are connected to the ends of the lifting rods that are away from the telescopic rods.

5. The dock moving device according to claim 1, characterized in that, Both the telescopic drive assembly and the lifting drive assembly are hydraulic cylinders.

6. The dock moving device according to claim 5, characterized in that, The control mechanism further includes: a housing and a plurality of drive motors, wherein the drive motors are disposed on the housing; The telescopic drive assembly and the lifting drive assembly are disposed inside the housing, and the drive motor is connected to the hydraulic pump of the hydraulic cylinder.

7. The dock moving device according to claim 6, characterized in that, The control mechanism also includes a lithium battery and an inverter, which are disposed inside the housing. The lithium battery is used to provide operating power to the drive motor, and the inverter is used to convert the DC power output by the lithium battery into AC power adapted to the drive motor.

8. The dock moving device according to claim 6, characterized in that, The control mechanism also includes a controller and a control panel, the control panel being used for operators to input control commands; The controller is connected to the control panel and the drive motor control respectively. The controller controls the action of the drive motor according to the control command, thereby adjusting the extension and retraction of the telescopic rod and the lifting rod.

9. The dock moving device according to claim 6, characterized in that, The walking mechanism also includes a second walking wheel and a motor. The second walking wheel is disposed at the bottom of the housing, and the motor is driven to drive the second walking wheel to rotate.

10. A method of using the dock moving device as described in any one of claims 1-9, characterized in that, The steps are as follows: Move the dock moving device to the dock to be moved, and place the two telescopic rods on both sides of the dock; The telescopic drive assembly drives the ends of the two telescopic rods to extend until the extended length of the telescopic rods is greater than the length of the dock, so that the lifting rod on the telescopic rod can correspond to the support point on the dock; Subsequently, the lifting drive assembly drives the end of the lifting rod to extend until the dock pier is lifted off the ground; The walking mechanism drives the telescopic rod, the lifting rod, and the lifted dock to move to the target position; Upon reaching the target position, the lifting drive assembly drives the lifting rod to retract, lowering the dock and placing it at the target position; The telescopic drive assembly drives the telescopic rod to retract.

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